The North Sarawakan languages are a group of Austronesian languages spoken in the northeastern part of the province of Sarawak, Borneo, and proposed in Blust (1991, 2010).
North Sarawakan languages Kenyah Dayic languages (Apo Duat) Berawan–Lower Baram Bintulu
Ethnologue 16 adds Punan Tubu as an additional branch, and notes that Bintulu might be closest to Baram. The Melanau–Kajang languages were removed in Blust 2010.
The Northern Sarawak languages are well known for strange phonological histories.
Classification Smith (2017)Smith, Alexander. 2017. The Languages of Borneo: A Comprehensive Classification. PhD Dissertation: University of Hawai‘i at Mānoa. classifies the North Sarawakan languages as follows. Bintulu Berawan–Lower Baram Berawan (various dialects) Lower Baram (Miri, Kiput, Narum, Belait, Lelak, Lemeting, Dali’) Dayic Kelabit (Bario, Pa’ Dalih, Tring, Sa’ban, Long Seridan, Long Napir) Lun Dayeh (Long Bawan, Long Semadoh) Kenyah Highland (Lepo’ Gah, Lepo’ Tau, Lepo’ Sawa, Lepo’, Lepo’ Laang, Badeng, Lepo’ Jalan, Uma’ Baha, Uma’ Bem, Òma Lóngh) Lowland Eastern Lowland (Uma’ Pawe, Uma’ Timai, Lebo’ Kulit) Western Lowland (Lebo’Vo’, Sebop, Penan (eastern and western varieties))
Footnotes
References
K. Alexander Adelaar and Nikolaus Himmelmann, The Austronesian languages of Asia and Madagascar. Routledge, 2005.